Eroare de compilare: user.cpp: In function ‘void lee()’: user.cpp:50:15: error: no matching function for call to ‘std::queue<std::pair<Punct, Punct> >::push(Punct&)’ Q.push(y); ^ user.cpp:50:15: note: candidates are: In file included from /usr/include/c++/4.8/queue:64:0, from user.cpp:2: /usr/include/c++/4.8/bits/stl_queue.h:212:7: note: void std::queue<_Tp, _Sequence>::push(const value_type&) [with _Tp = std::pair<Punct, Punct>; _Sequence = std::deque<std::pair<Punct, Punct>, std::allocator<std::pair<Punct, Punct> > >; std::queue<_Tp, _Sequence>::value_type = std::pair<Punct, Punct>] push(const value_type& __x) ^ /usr/include/c++/4.8/bits/stl_queue.h:212:7: note: no known conversion for argument 1 from ‘Punct’ to ‘const value_type& {aka const std::pair<Punct, Punct>&}’ /usr/include/c++/4.8/bits/stl_queue.h:217:7: note: void std::queue<_Tp, _Sequence>::push(std::queue<_Tp, _Sequence>::value_type&&) [with _Tp = std::pair<Punct, Punct>; _Sequence = std::deque<std::pair<Punct, Punct>, std::allocator<std::pair<Punct, Punct> > >; std::queue<_Tp, _Sequence>::value_type = std::pair<Punct, Punct>] push(value_type&& __x) ^ /usr/include/c++/4.8/bits/stl_queue.h:217:7: note: no known conversion for argument 1 from ‘Punct’ to ‘std::queue<std::pair<Punct, Punct> >::value_type&& {aka std::pair<Punct, Punct>&&}’ user.cpp: In function ‘int main()’: user.cpp:67:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("verlab.in", "r", stdin); ^ user.cpp:68:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("verlab.out", "w", stdout); ^ user.cpp:69:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d\n", &t); ^ user.cpp:72:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d %d", &n, &m); ^ user.cpp:74:83: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for (int i = 1; i <= n; i++) for (int j = 1; j <= m; j++) scanf ("%d", &M[i][j]); ^